/*
* Copyright 2000-2016 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.util.indexing.impl;
import com.intellij.util.indexing.StorageException;
import gnu.trove.THashMap;
import gnu.trove.TObjectObjectProcedure;
import org.jetbrains.annotations.NotNull;
import java.util.Map;
public class EmptyInputDataDiffBuilder<Key, Value> extends InputDataDiffBuilder<Key,Value> {
public EmptyInputDataDiffBuilder(int inputId) {
super(inputId);
}
@Override
public void differentiate(@NotNull Map<Key, Value> newData,
@NotNull final KeyValueUpdateProcessor<Key, Value> addProcessor,
@NotNull KeyValueUpdateProcessor<Key, Value> updateProcessor,
@NotNull RemovedKeyProcessor<Key> removeProcessor) throws StorageException {
processKeys(newData, addProcessor, myInputId);
}
static <Key, Value >void processKeys(@NotNull Map<Key, Value> currentData,
@NotNull final KeyValueUpdateProcessor<Key, Value> processor,
final int inputId)
throws StorageException {
if (currentData instanceof THashMap) {
final StorageException[] exception = new StorageException[]{null};
((THashMap<Key, Value>)currentData).forEachEntry(new TObjectObjectProcedure<Key, Value>() {
@Override
public boolean execute(Key k, Value v) {
try {
processor.process(k, v, inputId);
}
catch (StorageException e) {
exception[0] = e;
return false;
}
return true;
}
});
if (exception[0] != null) {
throw exception[0];
}
}
else {
for (Map.Entry<Key, Value> entry : currentData.entrySet()) {
processor.process(entry.getKey(), entry.getValue(), inputId);
}
}
}
}